GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 STS 🢒 Safety and Security 🢒 Supplemental Inflatable Restraints 🢒 DTC B0014-B0045

Diagnostic Instructions
    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC B0014 01: Driver Side Deployment Loop Short to Battery

DTC B0014 02: Driver Side Deployment Loop Short to Ground

DTC B0014 04: Driver Side Deployment Loop Open Circuit

DTC B0014 0D: Driver Side Deployment Loop Resistance Above Threshold

DTC B0014 0E: Driver Side Deployment Loop Resistance Below Threshold

DTC B0015 01: Driver Pretensioner Deployment Loop Short to Battery

DTC B0015 02: Driver Pretensioner Deployment Loop Short to Ground

DTC B0015 04: Driver Pretensioner Deployment Loop Open Circuit

DTC B0015 0D: Driver Pretensioner Deployment Loop Resistance Above Threshold

DTC B0015 0E: Driver Pretensioner Deployment Loop Resistance Below Threshold

DTC B0016 01: Left Roof Rail Initiator 1 Deployment Loop Short to Battery

DTC B0016 02: Left Roof Rail Initiator 1 Deployment Loop Short to Ground

DTC B0016 04: Left Roof Rail Initiator 1 Deployment Loop Open Circuit

DTC B0016 0D: Left Roof Rail Initiator 1 Deployment Loop Resistance Above Threshold

DTC B0016 0E: Left Roof Rail Initiator 1 Deployment Loop Resistance Below Threshold

DTC B0019 01: Passenger Frontal Deployment Loop Stage 1 Short to Battery

DTC B0019 02: Passenger Frontal Deployment Loop Stage 1 Short to Ground

DTC B0019 04: Passenger Frontal Deployment Loop Stage 1 Open Circuit

DTC B0019 0D: Passenger Frontal Deployment Loop Stage 1 Resistance Above Threshold

DTC B0019 0E: Passenger Frontal Deployment Loop Stage 1 Resistance Below Threshold

DTC B0020 01: Passenger Frontal Deployment Loop Stage 2 Short to Battery

DTC B0020 02: Passenger Frontal Deployment Loop Stage 2 Short to Ground

DTC B0020 04: Passenger Frontal Deployment Loop Stage 2 Open Circuit

DTC B0020 0D: Passenger Frontal Deployment Loop Stage 2 Resistance Above Threshold

DTC B0020 0E: Passenger Frontal Deployment Loop Stage 2 Resistance Below Threshold

DTC B0021 01: Passenger Side Deployment Loop Short to Battery

DTC B0021 02: Passenger Side Deployment Loop Short to Ground

DTC B0021 04: Passenger Side Deployment Loop Open Circuit

DTC B0021 0D: Passenger Side Deployment Loop Resistance Above Threshold

DTC B0021 0E: Passenger Side Deployment Loop Resistance Below Threshold

DTC B0022 01: Passenger Pretensioner Deployment Loop Short to Battery

DTC B0022 02: Passenger Pretensioner Deployment Loop Short to Ground

DTC B0022 04: Passenger Pretensioner Deployment Loop Open Circuit

DTC B0022 0D: Passenger Pretensioner Deployment Loop Resistance Above Threshold

DTC B0022 0E: Passenger Pretensioner Deployment Loop Resistance Below Threshold

DTC B0023 01: Right Roof Rail Initiator 1 Deployment Loop Short to Battery

DTC B0023 02: Right Roof Rail Initiator 1 Deployment Loop Short to Ground

DTC B0023 04: Right Roof Rail Initiator 1 Deployment Loop Open Circuit

DTC B0023 0D: Right Roof Rail Initiator 1 Deployment Loop Resistance Above Threshold

DTC B0023 0E: Right Roof Rail Initiator 1 Deployment Loop Resistance Below Threshold

Diagnostic Fault Information

Circuit

Short to Ground

High Resistance

Open

Short to Voltage

Signal Performance

Side Impact Module - Driver - Low Control

B0014 02

B0014 04

B0014 0D

B0014 01

B0014 0E

Side Impact Module - Driver - High Control

B0014 02

B0014 04

B0014 0D

B0014 01

B0014 0E

Seat Belt Pretensioner - Driver - Low Control

B0015 02

B0015 04

B0015 0D

B0015 01

B0015 0E

Seat Belt Pretensioner - Driver - High Control

B0015 02

B0015 04

B0015 0D

B0015 01

B0015 0E

Roof Rail Module - Left - Low Control

B0016 02

B0016 04

B0016 0D

B0016 01

B0016 0E

Roof Rail Module - Left - High Control

B0016 02

B0016 04

B0016 0D

B0016 01

B0016 0E

IP Module - Stage 1 - Low Control

B0019 02

B0019 04

B0019 0D

B0019 01

B0019 0E

IP Module - Stage 1 - High Control

B0019 02

B0019 04

B0019 0D

B0019 01

B0019 0E

IP Module - Stage 2 - Low Control

B0020 02

B0020 04

B0020 0D

B0020 01

B0020 0E

IP Module - Stage 2 - High Control

B0020 02

B0020 04

B0020 0D

B0020 01

B0020 0E

Side Impact Module - Passenger - Low

B0021 02

B0021 04

B0021 0D

B0021 01

B0021 0E

Side Impact Module - Passenger - High

B0021 02

B0021 04

B0021 0D

B0021 01

B0021 0E

Seat Belt Pretensioner - Passenger - Low Control

B0022 02

B0022 04

B0022 0D

B0022 01

B0022 0E

Seat Belt Pretensioner - Passenger - High Control

B0022 02

B0022 04

B0022 0D

B0022 01

B0022 0E

Roof Rail Module - Right - Low Control

B0023 02

B0023 04

B0023 0D

B0023 01

B0023 0E

Roof Rail Module - Right - High Control

B0023 02

B0023 04

B0023 0D

B0023 01

B0023 0E

Circuit/System Description

If a malfunction is detected, a DTC will be stored in non-volatile memory. During a side or frontal crash of sufficient force the inflatable restraint sensing and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the airbag module. The SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity, shorts to ground, and shorts voltage. There are 2 shorting bars used within the module connector which will short together both high and low circuits, when the connector is disconnected. This will help to prevent unwanted deployment of the inflator module during servicing.

Conditions for Running the DTC

Ignition voltage is between 9-16 volts.

Conditions for Setting the DTC

B0014 01, B0015 01, OR B0016 01, B0019 01 Stage 1, B0020 01 Stage 2, B0021 01, B0022 01, B0023 01

The airbag module high and/or low circuit is short to voltage for 120 milliseconds.

B0014 02, B0015 02, OR B0016 02, B0019 02 Stage 1, B0020 02 Stage 2, B0021 02, B0022 02, B0023 02

The airbag module high and/or low circuit is short to ground for 120 milliseconds.

B0014 04, B0015 04, OR B0016 04, B0019 04 Stage 1, B0020 04 Stage 2, B0021 04, B0022 04, B0023 04

The airbag module high and/or low circuit is open for 120 milliseconds.

B0014 0D, B0015 0D, OR B0016 0D, B0019 0D Stage 1, B0020 0D Stage 2, B0021 0D, B0022 0D, B0023 0D

The airbag module deployment loop resistance is more than 3.9 ohms for 120 milliseconds.

B0014 0E, B0015 0E, OR B0016 0E, B0019 0E Stage 1, B0020 0E Stage 2, B0021 0E, B0022 0E, B0023 0E

The airbag module deployment loop resistance is less than 1.1 ohms for 120 milliseconds.

Action Taken When the DTC Sets
    • The SDM commands the AIR BAG indicator ON via serial data communications.
    • The SDM will store a DTC, if event occurs system will still attempt deployments.

Conditions for Clearing the DTC
    • The condition responsible for setting the DTC no longer exists.
    • A history DTC will clear once 100 malfunction-free ignition cycles have occurred.

Reference Information

Schematic Reference

SIR Schematics

Connector End View Reference

Title not found

Description and Operation

SIR System Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

    •  Scan Tool Data List
    •  Scan Tool Data Definitions

Special Tools Required

J 38715-A Driver and Passenger SIR Load Tool

Circuit/System Testing

    Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.

       • The pretensioner
       • The air bag module
       • The SDM module
       • The air bag wiring harness connector
       • The SDM wiring harness connector

  1. Ignition OFF, disconnect the harness connector at the applicable air bag module. Refer to the applicable air bag module replacement procedure.
  2. Ignition ON, test for less than 1-volt between the applicable high control circuit terminal and ground.
    3. • I/P Module - Stage 1 terminal A
    • I/P Module - Stage 2 terminal A
    • Left Front Roof Rail Module terminal 1
    • Right Front Roof Rail Module terminal 1
    • Seat Belt Pretensioner - Left terminal 2
    • Seat Belt Pretensioner - Right terminal 2
    • Side Impact Module - Left terminal 1
    • Side Impact Module - Right terminal 1
    ⇒If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.
  3. Test for less than 1 volt between the applicable low control circuit terminal and ground.
    4. • I/P Module - Stage 1 terminal B
    • I/P Module - Stage 2 terminal B
    • Left Front Roof Rail Module terminal 2
    • Right Front Roof Rail Module terminal 2
    • Seat Belt Pretensioner - Left terminal 1
    • Seat Belt Pretensioner - Right terminal 1
    • Side Impact Module - Left terminal 2
    • Side Impact Module - Right terminal 1
    ⇒If greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the SDM.
  4. Ignition OFF, test for infinite resistance between the applicable high control circuit terminal and ground.
    5. • I/P Module - Stage 1 terminal A
    • I/P Module - Stage 2 terminal A
    • Left Front Roof Rail Module terminal 1
    • Right Front Roof Rail Module terminal 1
    • Seat Belt Pretensioner - Left terminal 2
    • Seat Belt Pretensioner - Right terminal 2
    • Side Impact Module - Left terminal 1
    • Side Impact Module - Right terminal 2
    ⇒If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.
  5. Test for infinite resistance between the applicable low control circuit terminal and ground.
    6. • I/P Module - Stage 1 terminal B
    • I/P Module - Stage 2 terminal B
    • Left Front Roof Rail Module terminal 2
    • Right Front Roof Rail Module terminal 2
    • Seat Belt Pretensioner - Left terminal 1
    • Seat Belt Pretensioner - Right terminal 1
    • Side Impact Module - Left terminal 2
    • Side Impact Module - Right terminal 1
    ⇒If not the specified value, test the circuit for a short to ground. If the circuit tests normal, replace the SDM.
  6. With the applicable adaptor, connect in place of the air bag module.
  7. Ignition ON, verify the DTC is set as current.
    8. ⇒If DTC is not set or is set as history, replace the applicable air bag module.
  8. Ignition OFF, disconnect and the applicable adaptor.
  9. Disconnect the harness connector at the SDM.
  10. Test for less then 1 ohm between the following high control circuit terminals.
    11. • I/P Module - Stage 1 terminal A and SDM terminal 18
    • I/P Module - Stage 2 terminal A and SDM terminal 13
    • Left Front Roof Rail Module terminal 1 and SDM terminal 9
    • Right Front Roof Rail Module terminal 1 and SDM terminal 10
    • Seat Belt Pretensioner - Left terminal 2 and SDM terminal 56
    • Seat Belt Pretensioner - Right terminal 2 and SDM terminal 52
    • Side Impact Module - Left terminal 1 and SDM terminal 22
    • Side Impact Module - Right terminal 2 and SDM terminal 20
    ⇒If not within the specified range, test the circuit for an open/high resistance.
  11. Test for less then 1 ohm between the following low control circuit terminals.
    12. • I/P Module - Stage 1 terminal B and SDM terminal 19
    • I/P Module - Stage 2 terminal B and SDM terminal 12
    • Left Front Roof Rail Module terminal 2 and SDM terminal 8
    • Right Front Roof Rail Module terminal 2 and SDM terminal 11
    • Seat Belt Pretensioner - Left terminal 1 and SDM terminal 57
    • Seat Belt Pretensioner - Right terminal 1 and SDM terminal 53
    • Side Impact Module - Left terminal 2 and SDM terminal 23
    • Side Impact Module - Right terminal 1 and SDM terminal 21
    ⇒If not within the specified range, test the circuit for an open/high resistance.
  12. If all circuits test normal, replace the SDM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

    •  Inflatable Restraint Instrument Panel Module Replacement
    •  Driver or Passenger Seat Side Inflatable Restraint Module Replacement
    •  Inflatable Restraint Side Impact Module Wiring Harness Replacement
    •  Inflatable Restraint Roof Side Rail Module Replacement - Left Side
    •  Inflatable Restraint Roof Side Rail Module Replacement - Right Side
    •  Seat Belt Buckle Pretensioner Replacement
    •  SIR/SRS Wiring Repairs
    •  Control Module References for SDM replacement, setup, and programming